Building a SaaS platform? I provide end-to-end multi-tenant SaaS backend development using Django, FastAPI, and PostgreSQL. My solutions include multi-company architectures, role-based access control (RBAC), Stripe subscription billing, and API rate limiting to ensure a scalable, secure, and monetizable SaaS product. I also set up asynchronous task processing with Celery and Redis, ensuring high performance. Additionally, I optimize SaaS backends with serverless architectures (AWS Lambda), Kubernetes, and Docker for seamless cloud deployment. My experience includes HR management systems, accounting platforms, real-time collaboration tools, and AI-driven SaaS applications. Whether you’re launching a B2B or B2C SaaS product, I’ll help you build a reliable, efficient, and scalable backend infrastructure.